Frame construction



March 12, L. Q SECQRD FRAME CONSTRUCTION 2 Sheets-Sheet 1 Filed July 7, 1955 INVENTOR LLOYD CALL/1N SEZORD BY/ZW T P- ATTORNEY.

March 12, 1957 1.. c. SECORD FRAME CONSTRUCTION Filed July 7, 1955 2 Sheets-Sheet 2 i i 4 T 7 l4 i F e OJ f x il T L fl v, w

m -2 5 9 1 n a I, M M- m .w M H C. m I 2 K a J W H/ W/ i 22 11 |L-||| 2 4 I W 2 Z 2 I 7 IIWENTOR uoyp CALI/IN SEcogD BY A TTURNEK United States Patent FRAlVIE CONSTRUCTION Lloyd Calvin Secord, Toronto,.0ntario, Canada, assignor 'to Robert James Thompson and Paul B. Dilworth, Toronto, Ontario, Canada Application July 7, 1955, Serial'No. 520,540 1 Claim; (Cl. 189-76) This invention relates to a frame construction whereby two or more members may be'reinovably joined together .into a rigid structure and which framecan be formed and taken apart without the use of any special tools.

An object of the present invention is to provide a strong frame construction which can be put together and taken part quickly and easily with the use of simple tools ordinarily found in the home or readily procurable from suppliers of hardware.

The frame which I have devised consists of an aluminum sash for storm and screen windows but it will be apparent that it is useful for other structures and/or materials. It is therefore to be understood that, in describing the invention for use in sash construction, it is for the purpose of illustrating the same and is not to be considered as a limitation thereof.

For an understanding of the invention reference is to be had to the following description and the accompanying drawings in which:

Figure 1 is a perspectiveview of an aluminum extrusion formed in accordance with the present invention for fabrication into a window sash.

Figure 2 is a plan view of a window sash constructed from the extrusion illustrated in Figure l with the sealing strip removed.

Figure 3 is an exploded view showing the corner construction.

Figure 4 is a cross section on the line 1-4 Figure 2.

Figure 5 is a plan view similar to Figure 2 with the sealing strip in place.

Figure 6 is a cross section on the line 6-6 Figure 5.

Figure 7 illustrates a straight insert.

Figure 8 illustrates a two pane window in which a T- insert is employed.

Figure 9 illustrates a four pane window in which a cross-insert is employed.

Figure 10 illustrates a special insert for non-standard windows.

For the purpose of illustrating the present invention, I have illustrated it in conjunction with a storm sash of the standard type of frame made from aluminum extrusions of channel form of rectangular form in transverse cross section as shown in Figure 1 which can be cut into lengths to form the pieces for the stiles and rails of the sash with a minimum of waste. The extrusions are formed hollow to have a longitudinally extending channel 10 which is bounded by an outside wall 11, an inside wall 12, an outside edge wall 13 and an inside edge wall 14 which is formed with a longitudinal channel 15 for receiving the edge of the window pane 16. The window pane made be sealed in the channel 15 in the usual manner. The inside wall 12 is formed with a continuous longitudinal slot 17 which opens into the channel 10. The opposite edges of the wall 12 which define the slot 17 are substantially chisel-shaped to form oppositely disposed tongues 17a, 17b extending the full length of the said slot. Thus, when the stiles and rails are secured together to form a sash, there is formed a continuous slot which will face the window frame.

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Toform a storm sash, as illustrated in the drawings, employing the joint construction ofthe present invention I provide the aluminum extrusion shown in Figure l which can'be cut into the required lengths to form the vertical stiles 18, 19 and the horizontal rails 20, 21 shown in Figure 2 and the extrusion being hollow throughout its length provides a socket in the extrusion at the mitred end to receive the insert 2210 behereinafter described. The mitred ends of the stiles and rails are removably attached together by angle inserts 22 having legs arranged at an angle of to each other. The legs of the insert slide into the channel 10 of the abuting mitred corners of the stiles and rails tothus join the parts together to form the window sash. Each leg of the insert is provided with means for securing the inserts in place such as one or more'jacking screws 23 which, when tightened down'by a screw driver or wrench are flush with or lie slightly below the surface of the leg and thus do not interfere with the sealing strip hereinafter mentioned. The pressure of the jacking screws against the outside wall 11 may cause a local deformation on the walls of the channel so that the channel and insert are, in effect, keyed against sliding apart; nevertheless, the: force exerted by the insert on the flanges of the open channel wall 12 is sufficient to hold the corners firmly together.

Since the present construction is used for forming a sash, the slot 17 which, as will be seen from the drawings extends uninterruptedly around what will be the inside face of the sash, is employed for holding a sealing strip 24 made of rubber, plastic or other suitable material. The sealing strip is formed with longitudinal grooves arranged in each side thereof adjacent to the bottom edge to receive the bevelled edges of the slot 17 and positioned so that the sealing strip does not protrude into the chan nel 10. As well as providing continuous attachment for the sealing strip, the slot 1'7 positions the sealing strip against the face of the window stop, which is necessary for good sealing, so that the pressure exerted by the window fastenings insures contact between the sealing strip and the window frame.

Figure 7, 8 and 9 illustrate different. shapes of inserts for use in manufacturing a storm window constructed in accordance with the present invention. The straight insert shown in Figure 7 is for use in joining together two short pieces of the extrusion in a straight line, and comprises a pair of legs 36, 37 disposed at an angle of to each other. When the storm sash is to be formed with two panes, the insert shown in Figure 8 may be used. The insert shown in Figure 8 consists of a T-insert comprising three legs 38, 39 and 40 disposed at an angle of 90 to each other. In this case, the stiles for the sides of the sash are formed from two pieces of extrusion 24, 25 and cross bar 26 similar to the extrusion shown in Figure 1 except that both edges thereof are formed with channels 15a, similar to channel 15, for receiving the window pane. The legs of the insert are inserted in the channel of each piece and secured in place by jacking screws 23.

To construct or assemble a four pane window, as illustrated in Figure 9, each vertical stile, each horizontal rail and each cross bar is made from two pieces. The two pieces of each stile and rail and the four cross members 31, 32, 33 and 34 connected thereto are joined together by T-inserts 27, 28, 29 and 30 which are similar to the T-inserts shown in Figure 7. The legs formed by the T are inserted into the abutting ends of the pieces and secured in place by the jacking screws :23. The ends of the cross bars which meet at the centre of the window are joined together by the cross insert 35 having four legs 41, 42, 43 and 44 which extend into the channel of the contiguous ends of cross bars and are secured in place by jacking screws 23 which, when tightened apply a jacking pressure, as previously described.

As some windows are what might be termed nonstandard, that is, the perimeter of the sash is not defined by right angles, it may be necessary to provide inserts in which the legs are disposed at an angle greater or less than a right angle. Figure 10 shows an insert in which the legs are disposed at an angle greater than a right angle.

This type would be required, for example, for windows having more than four sides.

What I claim as new and desired to protect by Letters Patent of the United States is:

For a window frame, a sectional window sash comprising separable hollow sash members forming the four sides thereof, each member having a slot in one side face thereof opening into the interior thereof and extending the full length thereof, connecting members joining together abutting ends of the sash members, each connecting member being angulated to provide a pair of legs disposed relative to each other at the same angle as the sash members to be 4 connected thereby and arranged to fit into the abutting ends of the sash members, each leg having threaded orifices therethrough facing said slot, jacking screws threaded into said orifices whereby the screws upon being threaded into said leg forces the ends of the screws against the side member opposite the longitudinal groove thereby engaging the connecting member by a frictional binding with the underside of the face having the continuous slot, the underside of the face in which the slot is formed being undercut adjacent each edge of the slot, and a flexible resilient closure member held in sealing engagement in said slot by the undercut portions to close said slot and cover said connecting members.

References Cited in the file of this patent UNITED STATES PATENTS 2,013,207 Hamm et al Sept. 3, 1935 2,654,451 Schmidgall Oct. 6, 1953 2,654,921 Blanchard Oct. 13, 1953 

